Troubleshooting Fryers With Computer Magic Iii.5, Basket Lift Timer, Or Digital Controller - Frymaster Pro H55-Series Installation And Operation Manual

6.2 Troubleshooting Fryers with Computer Magic III.5, Basket Lift Timer, or Digital
Controller
PROBLEM
No display on
computer or
controller.
Display shows
with alarm
sounding.
Display shows
with alarm
sounding. Heating
indicator is on, but
burners will not
light.
PROBABLE CAUSES
A. Controller not turned on.
B. No power to fryer.
C. Damaged computer/controller
wiring harness.
D. Failed computer/controller.
Damaged computer/controller
wiring harness or connector.
A. Drain valve not fully closed.
B. Gas valve is not turned on.
C. Manual gas shut off valve closed.
D. Improperly connected quick-
disconnect fitting on gas line.
E. Obstructed or failed combustion
air blower.
CORRECTIVE ACTION
A. Press the ON/OFF switch to turn
the controller on.
B. Verify that the fryer is plugged in
and that the circuit breaker is not
tripped.
C. If available, substitute a harness
known to be good for the suspect
harness. If the fryer functions
correctly, order replacement
harness from FASC.
D. If available, substitute a
computer/controller known to be
working for the suspect
computer/controller. If the fryer
functions correctly, order
replacement from FASC.
If available, substitute a harness
known to be good for the suspect
harness. If the fryer functions
correctly, order replacement
harness from FASC.
A. Press the ON/OFF switch off,
close the drain valve(s)
completely, then press the
ON/OFF switch on.
B. Turn the gas valve knob to the
ON position.
C. Verify that any in-line manual
shut off valve is open. Verify that
gas main cut off valve is open.
D. Verify that the quick-disconnect
fitting on the flexible gas line is
firmly connected to the fryer.
E. Verify that combustion air blower
is running. If not, call FASC for
service. If combustion air blower
is functional, clean and adjust per
instructions in Chapter 5 of this
manual.
6-2